Low temperature cracking in asphalt overlays bonded to rigid pavements

H. M. Yin, William G Buttlar, Glaucio Paulino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The elastic fields in an overlay bonded to a stiffer substrate are investigated, when the system is subjected to thermally induced stress. A two-dimensional solution of the displacement field is derived for periodic discontinuities distributed in a hot mix asphalt overlay bonded to a Portland Cement Concrete pavement, where the length of the pavement before cracking develops is much larger than its layer thickness. Energy release rates are calculated from the model for three- dimensional channeling. By comparing the energy release rates with the fracture toughness of the overlay, crack initiation and crack spacing for a given temperature change can be estimated. The solutions are valuable to the pavement analyst who seeks to understand the general mechanisms of thermally induced pavement deterioration and for the researcher wishing to perform early stage verification of more complex pavement models.

Original languageEnglish (US)
Title of host publicationPavement Cracking
Subtitle of host publicationMechanisms, Modeling, Detection, Testing and Case Histories
Pages683-692
Number of pages10
StatePublished - Dec 1 2008
Event6th RILEM International Conference on Cracking in Pavements - Chicago, IL, United States
Duration: Jun 16 2008Jun 18 2008

Publication series

NamePavement Cracking: Mechanisms, Modeling, Detection, Testing and Case Histories

Other

Other6th RILEM International Conference on Cracking in Pavements
Country/TerritoryUnited States
CityChicago, IL
Period6/16/086/18/08

Keywords

  • Asphalt overlay
  • Cracking
  • Fracture mechanics
  • Rigid pavements
  • Thermal stresses

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Architecture

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